with so many law enforcement agencies on this. the shootout in watertown. >> reporter: right. >> judge jeanine: dhokhar is bleeding and one block behind the perimeter. wouldn't there be a trail to his location whether he is one block beyond or not? >> there was some what of a trail to his location and that is how he was spotted. the homeowner came out to smoke a cigarette and notice that there was a door to the shed open and there was bloody clothes and blood stains going into the boat where the shrink wrap over the top of the boat was disturbed. the individual picked up the shrink wrap and saw him and backed off and called 911. why there wasn't a larger or longer blood trail i can't answer that. >> judge jeanine: thank goodness for the thermal sensorring from the helicopters as well as a very alert woman who notice or the man who noticed that there was some blood around the boat. mike tobin, thanks so much. and now to catherine herridge, fox news chief intelligence correspondent. catherine, what do we know about the suspect's ter